mod 4 Flashcards
is the point in chemical reaction at which there is no further change in the relevant iconic and molecular species
chemical equilibrium
a principle that when the rate is zero, the net concentration of A, B, C and D are in equilibrium with each other
Le Chatelier’s Principle
is one which can be made to go in either direction depending on the conditions
reversible reactions
is defined as the product of the molar concentration of the products which is each raised
equilibrium constant
it is a system in which reactants and products are found in two or more phases
heterogenous equilibrium
is the study of chemical process and rates of reactions that includes analysis of conditions that affect speed of a chemical reaction
chemical kinetics
defines how we measure rates.
can be determined by monitoring the change of concentration of either reactants or products as a function of time
reaction rates
defines how the rate depends on amounts of reactants
integrated rate laws
defines how long it takes to react 50% of the reactants
half-life
defines how rate constant changes with temperature
arrhenius equation
is an energy reaction that has a minimum amount of energy to get it started
active energy
is the actual speed of particles. the faster the particles move, the harder will be the collision
kinetic energy
most chemical reactions proceed faster if the concentration of one or more of the reactants increased
concentration of reactants
at higher temperatures, reactant molecules have more kinetic energy, and they move faster and collide more often
temperature at which reaction occur
a theory where temperature means that the molecules move faster
kinetic theory
a theory when two chemicals react, their molecules have to collide with each other with sufficient energy
collision theory
a ______ is a substance added to a reaction to increase its rate without being consumed in the reaction
catalyst
increased in number of collisions
pressure of reactants/products
reactions that involve solids often proceed faster as the surface of the area of the solid is increased.
surface are of reactants/catalyst
the mathematical relationship between the concentration id reactants and the rate of the reaction
rate law
a swedish chemist who combined the concepts of activation energy and the boltzmann distribution law into one of the most important relationships in physical chemistry
Svante Arrhenius
